Model comparison

Grok 4.6 vs Inkling-Small

Grok 4.6 is the stronger model overall, scoring 56.9 to 46.5 on the Noometry Index. Inkling-Small costs 4.7× less per token, which makes it the better buy when Grok 4.6's lead doesn't matter for your workload.

Last verified . 32 shared benchmarks.

Grok 4.6 xAI

56.9

Rank #21 Confirmed

Inkling-Small Thinking Machines Lab

46.5

Rank #63 Confirmed

Summary

  • They share 32 benchmarks with published results for both. Grok 4.6 scores higher in 9 categories and Inkling-Small in 0 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Grok 4.6 leads 61.4 to 38.6.
  • The biggest single-benchmark swing is ProofBench: 51% for Grok 4.6 and 6% for Inkling-Small.
  • Inkling-Small is cheaper at $0.45 / $1.20 per million input/output tokens, against $2 / $6 for Grok 4.6.
  • Inkling-Small accepts more context: 524K tokens versus 500K.
  • Inkling-Small has downloadable open weights; the other is API-only.

Side by side

Grok 4.6 and Inkling-Small specifications
Grok 4.6Inkling-Small
ProviderxAIThinking Machines Lab
Noometry Index56.946.5
Released2026-08-122026-07-15
WeightsProprietaryOpen
Context window500K524K
Max output500K1.05M
Input $ / M tokens$2$0.45
Output $ / M tokens$6$1.20
Results tracked4933

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Category by category

Coding Grok 4.6 leads

Grok 4.6: 58.5 (#16), Inkling-Small: 43.6 (#85)

Coding benchmarks
BenchmarkGrok 4.6Inkling-Small
LMArena WebDev16171409
SciCode56.5%48.7%
LMArena Coding14651451
DeepSWE67.5%—
FrontierCode48%—
CursorBench41.4%—
FrontierSWE25.3%—
WeirdML67.3%—
ALE-Bench1,508—

Agentic & Tool Use Not comparable

Grok 4.6: 39.4 (#27), Inkling-Small: —

Agentic & Tool Use benchmarks
BenchmarkGrok 4.6Inkling-Small
APEX-Agents65.3%—
GDP.pdf17.2%—
Vending-Bench 29,047—

Reasoning Grok 4.6 leads

Grok 4.6: 61.4 (#20), Inkling-Small: 38.6 (#63)

Reasoning benchmarks
BenchmarkGrok 4.6Inkling-Small
ARC-AGI-267.1%40.1%
ARC-AGI-187.5%84%
CritPt19.7%8.3%
Chess Puzzles40%18%
LMArena Hard Prompts14471423
Mystery Game Puzzles34%6%
Epoch Capabilities Index156.44150.15
SimpleBench75.9%—
NYT Connections (extended)80%—
EBR-Bench30.5%—
DTBench97.3%—
LMCA48.5%—

Math Grok 4.6 leads

Grok 4.6: 67.0 (#24), Inkling-Small: 45.1 (#77)

Math benchmarks
BenchmarkGrok 4.6Inkling-Small
FrontierMath (Tiers 1-3)66%46.3%
FrontierMath Tier 431.7%17.1%
OTIS Mock AIME 2024-202599.2%90%
ProofBench51%6%
LMArena Math14231459

Knowledge Grok 4.6 leads

Grok 4.6: 63.3 (#20), Inkling-Small: 48.2 (#77)

Knowledge benchmarks
BenchmarkGrok 4.6Inkling-Small
GPQA Diamond94%88.5%
SimpleQA Verified49.3%19.1%
LMArena Expert14671442

Multimodal Grok 4.6 leads

Grok 4.6: 43.6 (#23), Inkling-Small: 39.1 (#62)

Multimodal benchmarks
BenchmarkGrok 4.6Inkling-Small
LMArena Vision12631235
Blueprint-Bench 233.2%—
Furniture Assembly40%—
LMArena Document1452—

Multilingual Grok 4.6 leads

Grok 4.6: 53.0 (#74), Inkling-Small: 51.7 (#104)

Multilingual benchmarks
BenchmarkGrok 4.6Inkling-Small
LMArena Non-English14201402
LMArena Chinese14801465
LMArena French14611436
LMArena German14311405
LMArena Japanese13761405
LMArena Korean13971363
LMArena Russian14221391
LMArena Spanish14041428

Instruction Following Grok 4.6 leads

Grok 4.6: 75.4 (#63), Inkling-Small: 73.8 (#114)

Instruction Following benchmarks
BenchmarkGrok 4.6Inkling-Small
LMArena Instruction Following14311399

Long Context Grok 4.6 leads

Grok 4.6: 44.5 (#66), Inkling-Small: 42.7 (#118)

Long Context benchmarks
BenchmarkGrok 4.6Inkling-Small
LMArena Longer Query14541401

Writing & Preference Grok 4.6 leads

Grok 4.6: 62.3 (#80), Inkling-Small: 59.6 (#107)

Writing & Preference benchmarks
BenchmarkGrok 4.6Inkling-Small
LMArena Text14281414
LMArena Creative Writing14281331
LMArena Multi-Turn14251418
EQ-Bench Creative Writing—1491

Frequently asked questions

Is Grok 4.6 better than Inkling-Small?

Grok 4.6 is the stronger model overall, scoring 56.9 to 46.5 on the Noometry Index. Inkling-Small costs 4.7× less per token, which makes it the better buy when Grok 4.6's lead doesn't matter for your workload.

Which is cheaper, Grok 4.6 or Inkling-Small?

Inkling-Small is cheaper. It lists at $0.45 per million input tokens and $1.20 per million output tokens; Grok 4.6 lists at $2 and $6.

Is Grok 4.6 or Inkling-Small better for coding?

Grok 4.6 scores higher on coding benchmarks: 58.5 versus 43.6 in the Noometry coding category.

Which has the bigger context window?

Inkling-Small does, with 524K tokens against 500K.

How many benchmarks do Grok 4.6 and Inkling-Small share?

32 benchmarks have published results for both models. Grok 4.6 has 49 scored results on Noometry and Inkling-Small has 33.

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